Amirkabir University of Technology Amirkabir Journal of Mechanical Engineering 2008-6032 47 1 2015 08 23 The Comparison between Al2O3/water and CuO/water nanofluids experimental heat transfer performance inside triangular duct The Comparison between Al2O3/water and CuO/water nanofluids experimental heat transfer performance inside triangular duct 91 99 466 10.22060/mej.2015.466 FA S. Zeinali Heris Zahra Edalati S.H. Noie Journal Article 2011 03 17 Experimentally and numerically investigation of triangular ducts heat transfer is very important for many heating and cooling systems  because of their very low pressure drop. But/ Nevertheless ,  this non-circular duct has very bad heat transfer performance. In the present study, the heat transfer performance of triangular ducts using nanofluid as heat transfer media is experimentally investigated. Nanofluid (which is the stable suspension of nanoparticles inside base fluid) is a new kind of heat transfer fluid and has very good potential for the heat transfer enhancement. Two kinds of nanofluid (Al₂O₃/water and CuO/water) produced and injected to the experimental set up, and the Nusselt number and heat transfer coefficients of these nanofluids are determined experimentally and compared with each other. The result expressed that Cuo/water presents better heat transfer performance compared to Al₂O₃/water nanofluid. Experimentally and numerically investigation of triangular ducts heat transfer is very important for many heating and cooling systems  because of their very low pressure drop. But/ Nevertheless ,  this non-circular duct has very bad heat transfer performance. In the present study, the heat transfer performance of triangular ducts using nanofluid as heat transfer media is experimentally investigated. Nanofluid (which is the stable suspension of nanoparticles inside base fluid) is a new kind of heat transfer fluid and has very good potential for the heat transfer enhancement. Two kinds of nanofluid (Al₂O₃/water and CuO/water) produced and injected to the experimental set up, and the Nusselt number and heat transfer coefficients of these nanofluids are determined experimentally and compared with each other. The result expressed that Cuo/water presents better heat transfer performance compared to Al₂O₃/water nanofluid. https://mej.aut.ac.ir/article_466_e836d813fd184325132fca8edcdfb40e.pdf